JPS5930318B2 - yoshishiyorisouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper processing device for a line printer that automatically loads paper and processes paper according to the amount of paper completed within the paper processing device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a paper processing device that performs excellent paper processing by keeping the amount of paper processed by a line printer below the paper processing capacity of the paper processing device.

According to the present invention, in a paper processing device for a line printer in which continuous folding paper is mounted and paper processing is performed according to the amount of paper processed in the paper processing device, the amount of paper slack between the line printer and the paper processing device can be reduced. A means for issuing a pause request to the line printer when a certain value is exceeded, and a means for issuing a temporary stop request to the line printer.
When paper slack occurs between the printer and the paper processing device and the amount of paper processed by the line printer or the amount of paper processed by the paper processing device exceeds a certain value, the means for issuing a temporary stop request to the line printer is used. By keeping the amount of paper processed by the line printer below the paper processing capacity of the paper processing device, a paper processing device that performs good paper processing operations can be obtained.

An embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the paper processing device 5 of the present invention mechanically includes a paper guide section 6 for guiding the paper 4 to a feed roller 7, a feed roller 7 for carrying the paper 4, and a paper 4 a swing fin 8 for folding the paper into the paper holder 9; a paper holder 9 for accumulating the paper 4;
Consists of a paper tension detection micro switch 10 for detecting the state in which paper 4 is stretched in the paper guide section 6, a paper tension detection micro switch 11 for detecting the starting point of paper processing operation of the paper processing device 5, etc. has been done. Electrically, as shown in Fig. 2, there is a paper length setting rotary switch 12 for setting the paper length of the paper to be processed, and a feed switch 12 for generating a feed pulse that simulates the paper processing amount of the paper processing device.・Feed pulse disk 15 and feed pulse detection means 16 attached to roller T
, an up-down counter 18 for detecting the amount of paper slack between the line printer and the paper handling device, and a force for detecting the period during which paper slack is occurring between the line printer and the paper handling device. a correction counter 25, a paper length counter 29 for counting the paper feed amount of the paper processing device, a paper length matching circuit 30 for detecting the drive timing of the swing fin, and a swing counter 29 for counting the paper feed amount of the paper processing device; It is composed of a fin control circuit 31 and the like. Note that the tractor 3 of the line printer is provided with a line pulse disk 13 for generating line pulses that match the paper feed amount of the line printer.
A pulse is detected. Next, an overview of the operation of the paper processing device 5 will be explained. The paper 4 is transported by the tractor 3 of the line printer 1, printed at the position of the printing drum 2, and sent to the paper processing device 5.

In the paper processing device 5, the paper 4 is allowed to fall naturally by the paper guide section 6, and is automatically bitten into the feed roller 7.
The swing fin 8 swings left and right according to the paper length and paper feeding amount, so that the paper is correctly folded and stored on the paper holder 9. Although the paper holder 9 automatically descends according to the amount of accumulated paper 4, its explanation will be omitted since it is not directly relevant to this application. Also, the paper processing device 5 detects when the paper 4 is bitten by the feed roller 7.
Paper processing starts from the moment the switch 11 is activated.
In this case, the line printer's maximum paper advance speed is 10
The printing speed is about 100 inches/second with a printing speed of about 00 lines/minute.

On the other hand, the effective paper feeding speed of the paper processing device is set to about 50 inches/second. The reason for setting the effective paper feeding speed of this paper handling device is that due to the nature of the paper, if the paper is fed at a speed of approximately 50 inches/sand or higher, good folding will not be possible, and furthermore, the line printer will continuously operate at the maximum speed ( (skip operation, etc.), so even if the effective paper feed speed of the paper processing device is slower than the maximum paper feed speed of the line printer, in actual use (for example, when a line printer prints with a single line feed) This is because a sufficient response can be achieved at a paper feeding speed of about 10 inches/sec. However, when the paper feed speed of the line printer exceeds the paper feed speed of the paper processing device, paper slack occurs between the two devices.

If the amount of slack in the paper becomes too large, a paper jam or the like will occur, so it is necessary for the paper processing device to detect the amount of slack in the paper and temporarily stop the line printer. The amount of slack in the paper between the line printer and the paper processing device can be detected by subtracting the paper feed amount of the paper processing device from the paper feed amount of the line printer.

That is, the number of line pulses that match the paper feed amount of the line printer minus the number of feed pulses that match the paper feed amount of the paper processing device is the amount of paper slack between the two devices. In addition, as a means for generating line pulses that match the paper feed amount of the line printer, a line pulse generator is applied to the drive shaft of the tractor 3 of the line printer 1.
A disk 13 is provided, a large number of equally spaced slits provided on the disk surface are detected by a line pulse detection means 14, and the detected line pulses are detected by a line pulse detection means 14 provided between the line printer 1 and the paper processing device 5. The data is supplied to the paper processing device through a logical interface.

As a means for generating a feed pulse that matches the paper feed amount of the paper processing device, a means for generating a feed pulse that simulates the paper feed amount of the paper processing device is first required.

The feed pulse, which simulates the paper feed amount of this paper processing device, is generated by installing a feed pulse disk 15 on the drive shaft of the feed roller 7, and detecting the feed pulse using a large number of equally spaced slits provided on the disk surface. Means 16
Detected by. The feed pulse detected by the feed pulse detection means 16 is a feed pulse that simulates the paper feed amount of the paper processing device 5 because the feed roller 7 is constantly rotating. Next up
Using the down counter 18, the number of line pulses that match the paper feed amount of the line printer is taken out to simulate the paper feed amount of the paper processing device, thereby matching the paper feed amount of the paper processing device. Feed
Create a pulse. In other words, the up-down counter 18 is incremented by the line pulse detected by the line pulse detection means 14 that matches the paper feed amount of the line printer, and the feed pulse detection means is activated only when the count value of the counter 18 is not zero. 16, the up-down counter 18 is decremented with a feed pulse that simulates the paper feed amount of the paper processing device, so that the decrement count signal of the counter 18 becomes the feed pulse that matches the paper feed amount of the paper processing device. Become.
Also, the feed rate that matches the paper feed rate of the paper processing device is
The count value of the up-down counter 18 used in the means for generating pulses is calculated by calculating the number of feed pulses that matched the paper feed amount of the paper processing device from the number of line pulses that matched the paper feed amount of the line printer. It is subtracted.

That is, the count value of counter 18 represents the amount of paper slack between the line printer and the paper handling device. In the paper processing device, when a feed pulse matching the paper feed amount is detected, the feed pulse causes the paper length counter 29 to be
is counted.

In other words, the count value of the paper length counter 29 represents the paper feed amount of the paper processing device. The counted value of the paper length counter 29 is supplied to the paper length matching circuit 30, and the paper length matching circuit 30 matches the set value of the paper length setting rotary switch 12, which sets the paper length of the paper processed by the paper processing device. This is done in the match matching circuit 30, and when a match is found, an output is generated from the paper length match matching circuit 30, and the swing fin control circuit 3
1 is operated, the paper length counter 29 is reset, and control of the swing fin 8 moves to the next step. The swing/fin control circuit 31 is a paper length matching circuit 30
The swing fin 8 is moved one step by a command from the controller. Although the driving means for the swing fin 8 is not specifically shown, it can be realized by a very general means such as an electromagnetic clutch, so a description thereof will be omitted.
Also, the movement of the swing fin 8 is from left side → center → right side →
The central four steps form one cycle. Next, in the paper processing device of the present invention, means for issuing a temporary stop request to the line printer according to the amount of paper slack between the line printer and the paper processing device, and means for issuing a temporary stop request to the line printer in accordance with the amount of paper slack between the line printer and the paper processing device, The means for issuing a temporary stop request to the line printer in accordance with the paper feed amount will be explained in detail with reference to FIG.

Line pulse detection means 14 is connected to an increment counting terminal of up-down counter 18. Further, the feed pulse detection means 16
It is connected to a decrement count terminal of the counter 18 via an AND gate 17, and further connected to an increment count terminal of a forced correction counter 25 via an AND gate 24. The paper detection micro switch 11 is connected to a set terminal of an up/down counter 18, and is further connected to a set terminal of a forced correction counter 25 via an OR gate 23. It is also connected to a paper length counter 29 set terminal via an OR gate 28. When the paper 4 is sent from the line printer 1 and the paper edge is detected by the paper detection micro switch 11, the output of the micro switch 11 becomes low, and the up-down counter 18 and paper length counter 29 are set. Release. Also, a low signal is sent to one input of the OR gate 23 connected to the reset terminal of the counter 25 for forced correction, and the micro switch 11 is
The reset of the counter 25 by the above operation is canceled. Therefore, from now on, the up-down counter 18 starts counting by sending line pulses and feed pulses, and the paper length counter 29 starts counting by sending feed pulses through gate 17. It becomes possible. All outputs of up-down counter 18 are connected to OR gates 19 or 20 and, via OR gate 21, to AND gates 17 and 22. The paper tension detection micro switch 10 is connected to the set terminal of the forced correction counter 25 via an AND gate 22 and an OR gate 23. The paper tension detection micro switch 10 is mechanically turned ON when there is no slack between the tractor 13 of the printer 1 and the feed roller 7 of the paper processing device 5, and its output signal becomes a low level. At this time, only when the output from the OR gate 21 of the up/down counter 18, which electrically detects the amount of paper slack, is at a low level (the amount of slack is O), the output from the AND gate 22 becomes high level. ,
The forced correction counter 25 is reset. That is, when the up/down counter 18 or the micro switch 10 detects paper slack, the counter 25
counts the number of feed pulses. The output of the OR gate 20 is connected to the OR gate 26, and the output terminal 2n of the forced correction counter 25 is also connected to the OR gate 26 and to the AND gate 24.
The output of OR gate 26 is connected as a pause request signal 27 to a line printer. Next, the operation of the paper processing apparatus of the present invention will be explained in detail.

The present invention first requires means for generating line pulses that match the paper feed amount of the line printer. As a means for generating this line pulse, a line pulse disk 1 is attached to the drive shaft of the tractor 3 of the line printer 1.
3, and a large number of equally spaced slits provided on the disk surface are detected by the line/pulse detection means 14 using a very general detection means such as magnetic or optical. Note that the line printer 1 has conventionally used a means similar to the above-mentioned means for generating line pulses to control the operation within the line printer to advance the paper 4 by 1 inch, whereas the paper 4 has been fed by 6 or 8 lines. Since a means for generating pulses is included, line pulses detected by this means may be used. Further, the present invention requires means for generating a feed pulse that simulates the paper feed amount of the paper processing device.

As a means for generating this feed pulse, a feed pulse is attached to the drive shaft of the feed roller 7 of the paper processing device 5.
The pulse disk 15 may be directly mounted, and a large number of equally spaced slits provided on the disk surface may be detected by the feed pulse detection means 16 using a very general detection means such as magnetic or optical. Also, other feeds
As a means for generating pulses, an idle roller is rotatably attached to the drive shaft of the feed roller 7 of the paper processing device 5, a feed pulse disk is attached to the idle roller, and a large number of pulses are provided on the disk surface. The equally spaced slits may be detected by a feed pulse detection means using a very general detection means such as magnetic or optical. Further, as another means for generating a feed pulse, there is a method of creating an oscillation pulse using a general oscillation circuit and using it as a feed pulse. Further, the present invention requires means for detecting the amount of paper slack between the line printer 1 and the paper processing device 5, and issuing a temporary stop request to the line printer 1 when the amount of paper slack exceeds a certain value.

As a means for detecting the amount of paper slack between the two devices, a rear up/down counter 18 is incremented by a line pulse that matches the paper feeding amount of the line printer detected by the line pulse detection means 14. ,
When an output is generated at any output terminal of the counter 18, it is output to AND gate 1 via OR gates 19, 20, and 21.
7 is opened and the up-down counter 18 is decremented by a feed pulse that simulates the paper feed amount of the paper processing device detected by the feed pulse detection means 16. When the up-down counter 18 is decremented, the feed
The pulse becomes a feed pulse that corresponds to the paper feed amount of the paper handling device, and the count value of the counter 18 becomes the amount of paper slack between the line printer and the paper handling device. If the count value of this counter 18 exceeds a certain value, for example, the second
In the figure, when an output is generated at the output terminals 2m to 2n of the counter 18, the OR gates 20 and 26 output the temporary stop request signal 2.
7 and supplies it to the line printer via a logical interface. In a line printer, when a temporary stop request signal 27 is generated, the line printer temporarily stops when the current change operation is completed, and does not start the next change operation until the temporary stop request signal 27 is released. As a means for detecting the amount of paper slack between the line printer and the paper processing device, in addition to the above-mentioned method using the up-down counter, there are also methods using an adder and a memory circuit, and methods using an adder and a counting circuit. , a shift register, a microcomputer, and other common circuits. Further, the present invention requires a means for issuing a temporary stop request to the line printer when the paper feed amount exceeds a certain value while the paper is slack between the line printer and the paper processing device.

As a means for detecting the paper feed amount, when the up-down counter 18 is detecting paper slack, that is, when the counter 18 is outputting, the OR gates 19 and 20 are used to detect the OR gate. An output is generated at the gate 21, and the forced correction counter 25 is released from the reset state via the AND gate 22 and the OR gate 23. In addition, even when paper tension detection micro switch 10 detects paper slack, AND gate 22 and OR gate 2
3, the forced correction counter 25 is released from the set state. In a state where the forced correction counter 25 is released from the set state, the counter 25 is counted by the feed pulse detecting means 16 using a feed pulse that simulates the paper feed amount of the paper processing device. The count value of the forced correction counter 25 now represents the paper feed amount of the paper processing device in a state where paper slack has occurred, and if this paper feed amount exceeds a certain value, the counter 25 in FIG.
When an output occurs at the output terminal 2n of the printer 5, a pause request signal 27 is generated via the OR gate 26 and is supplied to the line printer via the logical interface. Note that when an output is generated at the output terminal 2n of the counter 25, the AND gate 24 is closed and the up/down counter 18
The temporary stop request signal 27 is generated until the paper tension is detected by both the paper tension detection micro switch 10 and the paper tension detection micro switch 10 and the counter 25 is reset. In addition, counter 2 for forced correction
For the count signal No. 5, a line pulse corresponding to the paper feed amount of the line printer by the line pulse detecting means 14 may be used instead of the feed pulse described above. When this line pulse is used, the forced correction counter 25
The count value represents the paper feed amount of the line printer when paper slack has occurred, and if this paper feed amount exceeds a certain value, a pause request signal 2 is sent to the line printer.
Rolling a 7 is effectively the same. Further, as the count signal of the forced correction counter 25, an oscillation pulse having a constant period from a general oscillation circuit may be used instead of the above-mentioned feed pulse. When this oscillation pulse is used, the count value of the forced correction counter 25 indicates the period during which paper slack has occurred, but the paper processing device processes the paper at a constant paper feeding speed when paper slack has occurred. As a result, the count value of the forced correction counter 25 represents the paper feed amount of the paper processing device in a state where paper slack has occurred, and if this paper feed amount exceeds a certain value, the paper feed amount exceeds a certain value. , it is effectively the same to issue a pause request signal 27 to the line printer. In addition to the above-mentioned method of using a counter, there are also methods of using a shift register and a method of using a single shot as means for detecting the amount of paper fed when paper slack occurs between a line printer and a paper processing device. This can be realized using very general circuits such as a method using a microcomputer or a method using a microcomputer. Furthermore, if paper is slack between the line printer and paper processing device and the paper feed amount of the line printer or paper processing device exceeds a certain value, the reason why the line printer is temporarily stopped is as follows. This is because the paper processing device automatically loads the paper, so the feed pulse that matches the paper feed amount of the paper processing device does not completely match the paper feed amount.

This is a method in which the paper processing device automatically loads the paper, so the means for generating feed pulses that match the amount of paper feed is provided with a feed pulse disk on the feed roller, and a feed pulse disk is installed in the feed roller,・Because there are restrictions on the detection method etc. by the pulse detection means,
The actual paper feed amount and feed pulse are determined by the paper type (paper weight, paper width, etc.) and feed roller pressure.
This is because they do not match perfectly due to reasons such as slippage. In addition, if paper feeding operations are performed continuously with the line printer's paper feeding amount slightly exceeding the paper feeding amount of the paper processing device, the state where paper slack has occurred between both devices will continue for a long time. It may last for a period of time. In this state, if paper processing is performed for a long period of time with a feed pulse that does not completely match the paper feed amount of the paper processing device, paper jams may occur, so paper slack may occur between the two devices. If the duration exceeds a certain value, the line printer is temporarily stopped and the paper is forcibly stretched between both devices. When the paper is stretched between these two devices, the paper processing operation of the paper processing device completely matches the paper feed amount (the counted value of the paper length counter 29 and the paper feed amount completely match). Good paper processing operation can be performed. As explained above, in the present invention, as a means for issuing a temporary stop request from a paper processing device to a line printer, the method is used when the amount of paper slack between both devices exceeds a certain value, and when paper slack occurs between both devices. By configuring a paper processing device that includes both the line printer and the paper processing device when the paper feed amount exceeds a certain value in a state where be.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a state in which a line printer and a paper processing device are connected, and FIG. 2 is a block diagram of the paper processing device. 1... line printer, 2... type drum, 3... tractor, 4... paper, 5... paper processing device, 6...Paper guide section, 7...Feed roller 8...
・Swing fin, 9...Paper holder, 10・
...Micro switch for paper cover detection, 11...
...Micro switch for paper detection, 12...
・Rotary switch for setting paper length, 13...
Line pulse disk, 14...Line
Pulse detection means, 15...Feed pulse
disk, 16... feed pulse detection means, 18... up/down counter, 25
... Forced correction counter, 27 ... Temporary stop request signal, 29 ... Paper length counter, 3
0...Paper length matching circuit, 31...
Swing fin control circuit.

Claims (1)

[Claims] 1. In a paper processing device of a printer that is equipped with continuous folding paper and processes paper according to the amount of paper feeding within the printer, slackening of paper between the paper feeding means of the printer and the paper feeding means of the paper processing device and means for counting the number of pulses corresponding to a period during which paper slack is detected by the detecting means, until the counted value of the counting means reaches a predetermined value. A paper processing device characterized in that the paper processing device sends a temporary stop request to the printer when the printer is pressed.